| 运用功率流方法对舰艇水下声辐射特性的研究 |
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| 引用本文： | 丁少春,朱石坚,俞翔,楼京俊.运用功率流方法对舰艇水下声辐射特性的研究[J].武汉理工大学学报(交通科学与工程版),2008,32(2):263-266. |
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| 作者姓名： | 丁少春 朱石坚 俞翔 楼京俊 |
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| 作者单位： | 海军工程大学振动与噪声研究所,武汉,430033 |
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| 摘 要： | 综合运用两种功率流方法对加装了隔振系统的简化潜艇模型进行分析,首先用导纳功率流法求出输入隔振器基座的归一化功率流,对由隔振器基座、艇体和辐射声空间组成的系统进行统计能量分析,求解出艇体的辐射功率,并通过数值分析研究了隔振装置性能参数对舰艇辐射功率的影响,提出了控制舰艇噪声辐射的一些基本原则.
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| 关 键 词： | 导纳功率流 统计能量法 声辐射 耦合损耗因子 |
| 修稿时间： | 2008年1月1日 |
Using Power Flow Method to Study the Characteristics of Radiated Noise |
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| Ding Shaochun,Zhu Shijian,Yu Xiang,Lou Jinjun.Using Power Flow Method to Study the Characteristics of Radiated Noise[J].journal of wuhan university of technology(transportation science&engineering),2008,32(2):263-266. |
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| Authors: | Ding Shaochun Zhu Shijian Yu Xiang Lou Jinjun |
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| Abstract: | The characteristics of power flow transmitted into the supporting base through the vibration isolators are investigated,and the radiated noise from the supporting base is studied in detail.The numerical simulation is carried out and some useful results are obtained: reducing the stiffness of isolators can reduce the broad frequency band radiated noise,but increase the monochromatic noise in the low frequency band;increasing the damping of isolators can reduce the monochromatic noise,but increase the broad frequency band noise;increasing the mass of supporting base of vibration isolation system can reduce the whole frequency band radiated noise. |
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| Keywords: | Power flow SEA Coupling damping radiated noise |
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